joining us now with more information is dr. charles. we hear so many stories and medical reports about puberty happening earlier. does that mean we should be having the conversation before age 10? at one point is it too early? >> the general issue is how to help kids mature. there are two parts come a physical part with their first period. you can probably start early elementary school, seven or eight years old. they will look around and see but the older girls are like. that is in elementary school now. >> you are right. >> in fifth grade, many of the girls are clearly maturing. it is important they appreciate that is normal. the other piece is adolescence. it is much more behavioral. the question becomes, how do you know your child is pre- adolescent? that is easy. they are in your face. >> your home gets very loud. for a second about broaching the conversation with a girl of only seven or eight. how do you begin that conversation? >> there needs to be an openness about your body. you can do that in the lots of different ways. let tha